Thanks, everyone, for the great advice:
imissthebarber - yes, I've been doing the laxity exercises with something bordering on religious fervor (!); have already noticed some improvement on that front (greater scalp looseness).
Acrobaz - I love the idea of using Nanogen just to conceal the donor scar, but avoiding the risk of using it on the recipient grafts. Unfortunately, I'm probably going to have some pinkness in the recipient area for several weeks (just based on the way I heal from cuts & scrapes), so I may need to talk to Dr. Hasson and his staff about finding a completely safe way to mask that redness (if such a way exists).
HairIsThere - The bandana idea is a great one, although I just don't know if I'm cool enough to pull off that look. (Have a feeling I'd wind up looking like a dorky version of Little Steven from Springsteen's band.)
Phil_Harmonic - Thanks for the thoughtful advice about hat placement and removal. I have a large head (hat size 7 1/2 - 7 5/8), so I'm a little worried that the "extra large" black hat at H&W might still be too snug! But I'll be sure to talk with Joe about this beforehand and make necessary arrangements. ;-)
Ciao,
Sparse